Eccentric-solenoid actuated sieve



Dec.' 17, 1946. L. H. sNY-DER ECCENTRIC-SOLENOID ACTUATED SIEVE Filed Oct. 27, `1943 ELA/v0 H. NyDEB bgg Patented Dec. 17, 1946 ECCENTRIC-SOLENOID ACTUATED SIEVE Leland H. Snyder, Lincolnwood, Ill., assigner, by

mesne assignments, to Continental-United Industries Co., Inc., New York, N. Y., a corporation of Delaware Application October 27, 1943, Serial No. 507,799

' The `present invention pertains to a sieve and more particularly to a portable type of domestic kitchen our sieve of an electrically operated type including a solenoid control which is eccentrically mounted and eccentrically connected with the sieve screen in such a way that the efiiciency of the sieve is increased. I

It is an object of this invention to provide a improved and simplifiedl form of electrically operated portable domestic sieve which is designed and constructed with improvements for increasing the adaptability and eiciency thereof.

It is also an object of this invention to provide an improved and simplied type of electrically operated sieve wherein a vibration producing unit is eccentrically connected with the sieve screen whereby a wave-like whipping motion is imparted to the screen for eiecting a more efiicient operation of the sieve.

It is a further object of this invention to pro-` vide an improved and simplied form of an electric sieve whereby the eciency of the sieve screen isincreased by eccentrically applying a vibratory motion thereto to produce a combination undulatory and whipping motion to the screen and thereby increasing the eiciency of the sieve.

It is furthermore an object of this invention to provide a portable type of electric sieve for sifting flour and the like, said sieve including a solenoid unit having a screen eccentrically connected thereto and supported thereby to receive a vibratory motion therefrom to cause the screen to'be actuated with a wave-like or whipping motion to increase the sifting action of the sieve.

It is an important object of this invention to provide an improved and simplified type of electric kitchen sieve wherein an electric solenoid has the plunger or core thereof eccentrically attached to and carrying a screen to produce a whipping motion thereto while a portion of the screen is limited in its movement by movable engagement with the sieve housing.

Other objects and features of the invention will be apparent from the disclosures in the specification and the appended drawing which illustrate a selected embodiment of the invention.

In the drawing:

Figure l is a top plan view of an improved sieve embodying the principles of this invention.

Figure 2 is a central vertical sectional view of the sieve with parts shown in elevation.

As shown in the drawing:

This invention relates to a. sieve and more particularly to a portable type of kitchen sieve for 2 Claims. (Cl. 209-347) sifting our and the like. The sieve of this invention is of the electrically operated type wherein a sifting screen is eccentrically connected to a vibration transmitting means to produce a sort of whipping or undulatory movement in the screen. to increase the sifting operation thereof.

As shown in the drawing, the reference numeral I indicates a cylindrical can or casing constructed of tin or othersuitable material and open at both ends. Secured to one side near the upper portion of the exterior of the casing I is a switchhousing 2 containing an electric switch mechanism designated as a whole by the reference numeral 3. The electric switch mechanism 3 is adapted to be operated by means of a push-button 4 which is of the spring controlled type and which, when depressed, causes closing of the switch contacts. Connected with the switch mechanism is an electric cord 5 on the outer end of which an electric plug (not shown) is adapted to be carried in order to permit the cord to be connected up with a suitable sort of electrical energy when the plug is engaged into an electric socket. Secured to the housing 2 is a handle .ii for holding the sieve when the same is being used. i

A plunger type of solenoid mechanism is mounted eccentrically within the sieve casing I and in the lower portion thereof adjacent the inner side of the wall having the housing 2 secured on the exterior thereof. The solenoid mechanism comprises a housing or casing 'I closed at the top and bottom and constructed of metal or other suitable material. Rigidly connecting the upper portion of the solenoid housing 'I to the wall of the sieve casing I is a tubular bracket 8 through which the wires from the cord 5 project. The lower portion of the solenoid housing I is also secured to the sieve casing I by means of a screw 9.

Supported in the solenoid housing I is a supporting frame I0 in which a solenoid coil I I is supported. Mounted within the solenoid. coil II is a-solenoid core or plunger I2 which projects downwardly through an opening in the bottom of the solenoid housing 1. The lower end of the solenoid plunger is eccentricaliy connected to a sieve screen I3 so that when the solenoid is operated the vibratory motions from the solenoid plunger I2 are transmitted to the screen I3 to produce whipping or undulatory movements of the screen to cause the rapid and efcient sifting of the flour or other contents' of the sieve through the screen out through the bottom of the sieve. It will thus be noted that by eccentricaliy connecting the solenoid plunger to the screen that portion of the. screen when carre/inea load, a! hook-shaped'nger or extension I4 isformedonv one end Aof a metal strip diametrically secured across the bottom of the screen.

guide slot I5 which is formed in the lower portion of the sieve casing I. The slot IlEalso-*servesjas a means for preventing rotative"In'overnentof` the screen.

The operation of the device is simple, merely requiring that the ilour or other' material',whichV is to be sifted is deposited in the top ofthe sieve casing I upon the screen. If the weight of the material is sufcient to deflect the margin of the screen farthest from the eccentric support, thev end Iii of the diametric strip projecting through the slot I5 in the casing will ser-ve as a support to prevent too great a defiectin to pei'- mit the material to pass out of the'bottom ofthe sieve" casing between the's'creen and the-casing. With a quantity of themat'erialdeposited inthe casing the person operating the device merely'V holds" the same by the handle Bf andv depresses the control switch button 4 toclose the contacts of the switch' mechanism ,3 therebyfpermitting theielectrical energy received through-the cord Sito operate the solenoid coil I I and the solen'oid plunger or co-re I2.

to the screen I3, causes a whipping or undulatory movement to be imparted to 'the screen, the movement of which is limited by the finger piece ImovingV in the guide slot I5.

The eccentricy mounting of the solenoid' and thesieve screen I 3"- permits different degreesof movement to be imparted'to different parts' ofA the screen dependingl upon the distance' of tlier parts from the plunger. The eccentric supporting of the screen and the*u'ndulatoryfmotion'.y

imparted thereto tends to more quickly` and thoroughlyisift the flouror'materialthrough the screen;

yThe hookedl outer end i4 of said strip 'projects' through a2 Operation of the sole-lv noidplunger I2, which is eccentrically connectedv It will, of course, be understood that various details of construction may be varied through a Ywide range without departing from the principles of this invention, and it is therefore, not the purpose to limit the patent granted hereon, otherwise than necessitated bythe scope of the appendedclaims f Iclaim as my invention:

1. A portable type sieve comprising a cylindricall casing, a handle unit connected with the casing, a solenoid supported eccentrically in said casing on one side Wall thereof, a plunger forming par-toff the solenoid and operable thereby, a screen eccentrically supported on the plunger within" the.A casingg' a strip secured diametrically across the screen and having one end only thereo1"y coacting withl the casing for limiting the movement of the screen, said strip having the opposite end secured to the periphery of the screen at a point thereon nearest the plunger, an electricV cord connected with the solenoid for delivering electrical energy thereto for operating'the solenoid, and a switch connected with the c'ordand with the solenoid for governing the operation ofthe solenoid to cause the plunger to transmit an undulatory'movement trically mounted screen.'

2.- A portable type of sievefor sifting flour and the'lik'e, saidv sieve comprising a casing, a handle mechanism connected to the casing-g a solenoid eccentrically mounted inthe casing, ari-electric cord connected with the solenoid,Y a switch in said'cord for governing the operation of the 'solenoid, aplunger operable-by the solenoid, a screen eccentric'ally connected at one point only to the plunger' and supported thereby to cause an undulatory whipping movementy to be impartedA to thescreen', and a diametric member having one end connected with the peripheryV of the screen andlhavin'g the opposite end coacting at one side only' with the casing to be supported thereby whenlo'aded andrfor limiting the movement oi thesc'reenwhen the same is actuated to cause sifting;

LELAND H. SNYDER.

to the 'eccenf Y 

